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linux-next/arch/mips/ath25/ar5312_regs.h
Sergey Ryazanov 1753e74ed8 MIPS: ath25: add interrupts handling routines 
Add interrupts initialization and handling routines, also add AHB bus
error interrupt handlers for both SoCs families.

Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Cc: Linux MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/8240/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24 07:45:27 +01:00

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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
* Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
*/
#ifndef __ASM_MACH_ATH25_AR5312_REGS_H
#define __ASM_MACH_ATH25_AR5312_REGS_H
/*
* IRQs
*/
#define AR5312_IRQ_WLAN0 (MIPS_CPU_IRQ_BASE + 2) /* C0_CAUSE: 0x0400 */
#define AR5312_IRQ_ENET0 (MIPS_CPU_IRQ_BASE + 3) /* C0_CAUSE: 0x0800 */
#define AR5312_IRQ_ENET1 (MIPS_CPU_IRQ_BASE + 4) /* C0_CAUSE: 0x1000 */
#define AR5312_IRQ_WLAN1 (MIPS_CPU_IRQ_BASE + 5) /* C0_CAUSE: 0x2000 */
#define AR5312_IRQ_MISC (MIPS_CPU_IRQ_BASE + 6) /* C0_CAUSE: 0x4000 */
/*
* Miscellaneous interrupts, which share IP6.
*/
#define AR5312_MISC_IRQ_TIMER 0
#define AR5312_MISC_IRQ_AHB_PROC 1
#define AR5312_MISC_IRQ_AHB_DMA 2
#define AR5312_MISC_IRQ_GPIO 3
#define AR5312_MISC_IRQ_UART0 4
#define AR5312_MISC_IRQ_UART0_DMA 5
#define AR5312_MISC_IRQ_WATCHDOG 6
#define AR5312_MISC_IRQ_LOCAL 7
#define AR5312_MISC_IRQ_SPI 8
#define AR5312_MISC_IRQ_COUNT 9
/*
* Address Map
*
* The AR5312 supports 2 enet MACS, even though many reference boards only
* actually use 1 of them (i.e. Only MAC 0 is actually connected to an enet
* PHY or PHY switch. The AR2312 supports 1 enet MAC.
*/
#define AR5312_WLAN0_BASE 0x18000000
#define AR5312_ENET0_BASE 0x18100000
#define AR5312_ENET1_BASE 0x18200000
#define AR5312_SDRAMCTL_BASE 0x18300000
#define AR5312_SDRAMCTL_SIZE 0x00000010
#define AR5312_FLASHCTL_BASE 0x18400000
#define AR5312_FLASHCTL_SIZE 0x00000010
#define AR5312_WLAN1_BASE 0x18500000
#define AR5312_UART0_BASE 0x1c000000 /* UART MMR */
#define AR5312_GPIO_BASE 0x1c002000
#define AR5312_GPIO_SIZE 0x00000010
#define AR5312_RST_BASE 0x1c003000
#define AR5312_RST_SIZE 0x00000100
#define AR5312_FLASH_BASE 0x1e000000
#define AR5312_FLASH_SIZE 0x00800000
/*
* Need these defines to determine true number of ethernet MACs
*/
#define AR5312_AR5312_REV2 0x0052 /* AR5312 WMAC (AP31) */
#define AR5312_AR5312_REV7 0x0057 /* AR5312 WMAC (AP30-040) */
#define AR5312_AR2313_REV8 0x0058 /* AR2313 WMAC (AP43-030) */
/* Reset/Timer Block Address Map */
#define AR5312_TIMER 0x0000 /* countdown timer */
#define AR5312_RELOAD 0x0004 /* timer reload value */
#define AR5312_WDT_CTRL 0x0008 /* watchdog cntrl */
#define AR5312_WDT_TIMER 0x000c /* watchdog timer */
#define AR5312_ISR 0x0010 /* Intr Status Reg */
#define AR5312_IMR 0x0014 /* Intr Mask Reg */
#define AR5312_RESET 0x0020
#define AR5312_CLOCKCTL1 0x0064
#define AR5312_SCRATCH 0x006c
#define AR5312_PROCADDR 0x0070
#define AR5312_PROC1 0x0074
#define AR5312_DMAADDR 0x0078
#define AR5312_DMA1 0x007c
#define AR5312_ENABLE 0x0080 /* interface enb */
#define AR5312_REV 0x0090 /* revision */
/* AR5312_WDT_CTRL register bit field definitions */
#define AR5312_WDT_CTRL_IGNORE 0x00000000 /* ignore expiration */
#define AR5312_WDT_CTRL_NMI 0x00000001
#define AR5312_WDT_CTRL_RESET 0x00000002
/* AR5312_ISR register bit field definitions */
#define AR5312_ISR_TIMER 0x00000001
#define AR5312_ISR_AHBPROC 0x00000002
#define AR5312_ISR_AHBDMA 0x00000004
#define AR5312_ISR_GPIO 0x00000008
#define AR5312_ISR_UART0 0x00000010
#define AR5312_ISR_UART0DMA 0x00000020
#define AR5312_ISR_WD 0x00000040
#define AR5312_ISR_LOCAL 0x00000080
/* AR5312_RESET register bit field definitions */
#define AR5312_RESET_SYSTEM 0x00000001 /* cold reset full system */
#define AR5312_RESET_PROC 0x00000002 /* cold reset MIPS core */
#define AR5312_RESET_WLAN0 0x00000004 /* cold reset WLAN MAC/BB */
#define AR5312_RESET_EPHY0 0x00000008 /* cold reset ENET0 phy */
#define AR5312_RESET_EPHY1 0x00000010 /* cold reset ENET1 phy */
#define AR5312_RESET_ENET0 0x00000020 /* cold reset ENET0 MAC */
#define AR5312_RESET_ENET1 0x00000040 /* cold reset ENET1 MAC */
#define AR5312_RESET_UART0 0x00000100 /* cold reset UART0 */
#define AR5312_RESET_WLAN1 0x00000200 /* cold reset WLAN MAC/BB */
#define AR5312_RESET_APB 0x00000400 /* cold reset APB ar5312 */
#define AR5312_RESET_WARM_PROC 0x00001000 /* warm reset MIPS core */
#define AR5312_RESET_WARM_WLAN0_MAC 0x00002000 /* warm reset WLAN0 MAC */
#define AR5312_RESET_WARM_WLAN0_BB 0x00004000 /* warm reset WLAN0 BB */
#define AR5312_RESET_NMI 0x00010000 /* send an NMI to the CPU */
#define AR5312_RESET_WARM_WLAN1_MAC 0x00020000 /* warm reset WLAN1 MAC */
#define AR5312_RESET_WARM_WLAN1_BB 0x00040000 /* warm reset WLAN1 BB */
#define AR5312_RESET_LOCAL_BUS 0x00080000 /* reset local bus */
#define AR5312_RESET_WDOG 0x00100000 /* last reset was a wdt */
#define AR5312_RESET_WMAC0_BITS (AR5312_RESET_WLAN0 |\
AR5312_RESET_WARM_WLAN0_MAC |\
AR5312_RESET_WARM_WLAN0_BB)
#define AR5312_RESET_WMAC1_BITS (AR5312_RESET_WLAN1 |\
AR5312_RESET_WARM_WLAN1_MAC |\
AR5312_RESET_WARM_WLAN1_BB)
/* AR5312_CLOCKCTL1 register bit field definitions */
#define AR5312_CLOCKCTL1_PREDIVIDE_MASK 0x00000030
#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT 4
#define AR5312_CLOCKCTL1_MULTIPLIER_MASK 0x00001f00
#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT 8
#define AR5312_CLOCKCTL1_DOUBLER_MASK 0x00010000
/* Valid for AR5312 and AR2312 */
#define AR5312_CLOCKCTL1_PREDIVIDE_MASK 0x00000030
#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT 4
#define AR5312_CLOCKCTL1_MULTIPLIER_MASK 0x00001f00
#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT 8
#define AR5312_CLOCKCTL1_DOUBLER_MASK 0x00010000
/* Valid for AR2313 */
#define AR2313_CLOCKCTL1_PREDIVIDE_MASK 0x00003000
#define AR2313_CLOCKCTL1_PREDIVIDE_SHIFT 12
#define AR2313_CLOCKCTL1_MULTIPLIER_MASK 0x001f0000
#define AR2313_CLOCKCTL1_MULTIPLIER_SHIFT 16
#define AR2313_CLOCKCTL1_DOUBLER_MASK 0x00000000
/* AR5312_ENABLE register bit field definitions */
#define AR5312_ENABLE_WLAN0 0x00000001
#define AR5312_ENABLE_ENET0 0x00000002
#define AR5312_ENABLE_ENET1 0x00000004
#define AR5312_ENABLE_UART_AND_WLAN1_PIO 0x00000008/* UART & WLAN1 PIO */
#define AR5312_ENABLE_WLAN1_DMA 0x00000010/* WLAN1 DMAs */
#define AR5312_ENABLE_WLAN1 (AR5312_ENABLE_UART_AND_WLAN1_PIO |\
AR5312_ENABLE_WLAN1_DMA)
/* AR5312_REV register bit field definitions */
#define AR5312_REV_WMAC_MAJ 0x0000f000
#define AR5312_REV_WMAC_MAJ_S 12
#define AR5312_REV_WMAC_MIN 0x00000f00
#define AR5312_REV_WMAC_MIN_S 8
#define AR5312_REV_MAJ 0x000000f0
#define AR5312_REV_MAJ_S 4
#define AR5312_REV_MIN 0x0000000f
#define AR5312_REV_MIN_S 0
#define AR5312_REV_CHIP (AR5312_REV_MAJ|AR5312_REV_MIN)
/* Major revision numbers, bits 7..4 of Revision ID register */
#define AR5312_REV_MAJ_AR5312 0x4
#define AR5312_REV_MAJ_AR2313 0x5
/* Minor revision numbers, bits 3..0 of Revision ID register */
#define AR5312_REV_MIN_DUAL 0x0 /* Dual WLAN version */
#define AR5312_REV_MIN_SINGLE 0x1 /* Single WLAN version */
/*
* ARM Flash Controller -- 3 flash banks with either x8 or x16 devices
*/
#define AR5312_FLASHCTL0 0x0000
#define AR5312_FLASHCTL1 0x0004
#define AR5312_FLASHCTL2 0x0008
/* AR5312_FLASHCTL register bit field definitions */
#define AR5312_FLASHCTL_IDCY 0x0000000f /* Idle cycle turnaround time */
#define AR5312_FLASHCTL_IDCY_S 0
#define AR5312_FLASHCTL_WST1 0x000003e0 /* Wait state 1 */
#define AR5312_FLASHCTL_WST1_S 5
#define AR5312_FLASHCTL_RBLE 0x00000400 /* Read byte lane enable */
#define AR5312_FLASHCTL_WST2 0x0000f800 /* Wait state 2 */
#define AR5312_FLASHCTL_WST2_S 11
#define AR5312_FLASHCTL_AC 0x00070000 /* Flash addr check (added) */
#define AR5312_FLASHCTL_AC_S 16
#define AR5312_FLASHCTL_AC_128K 0x00000000
#define AR5312_FLASHCTL_AC_256K 0x00010000
#define AR5312_FLASHCTL_AC_512K 0x00020000
#define AR5312_FLASHCTL_AC_1M 0x00030000
#define AR5312_FLASHCTL_AC_2M 0x00040000
#define AR5312_FLASHCTL_AC_4M 0x00050000
#define AR5312_FLASHCTL_AC_8M 0x00060000
#define AR5312_FLASHCTL_AC_RES 0x00070000 /* 16MB is not supported */
#define AR5312_FLASHCTL_E 0x00080000 /* Flash bank enable (added) */
#define AR5312_FLASHCTL_BUSERR 0x01000000 /* Bus transfer error flag */
#define AR5312_FLASHCTL_WPERR 0x02000000 /* Write protect error flag */
#define AR5312_FLASHCTL_WP 0x04000000 /* Write protect */
#define AR5312_FLASHCTL_BM 0x08000000 /* Burst mode */
#define AR5312_FLASHCTL_MW 0x30000000 /* Mem width */
#define AR5312_FLASHCTL_MW8 0x00000000 /* Mem width x8 */
#define AR5312_FLASHCTL_MW16 0x10000000 /* Mem width x16 */
#define AR5312_FLASHCTL_MW32 0x20000000 /* Mem width x32 (not supp) */
#define AR5312_FLASHCTL_ATNR 0x00000000 /* Access == no retry */
#define AR5312_FLASHCTL_ATR 0x80000000 /* Access == retry every */
#define AR5312_FLASHCTL_ATR4 0xc0000000 /* Access == retry every 4 */
/*
* ARM SDRAM Controller -- just enough to determine memory size
*/
#define AR5312_MEM_CFG1 0x0004
#define AR5312_MEM_CFG1_AC0_M 0x00000700 /* bank 0: SDRAM addr check */
#define AR5312_MEM_CFG1_AC0_S 8
#define AR5312_MEM_CFG1_AC1_M 0x00007000 /* bank 1: SDRAM addr check */
#define AR5312_MEM_CFG1_AC1_S 12
#endif /* __ASM_MACH_ATH25_AR5312_REGS_H */
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